X = int(input())

if 400 <= X < 600:
    print(8)
elif 600 <= X < 800:
    print(7)
elif 800 <= X < 1000:
    print(6)
elif 1000 <= X < 1200:
    print(5)
elif 1200 <= X < 1400:
    print(4)
elif 1400 <= X < 1600:
    print(3)
elif 1600 <= X < 1800:
    print(2)
else:
    print(1) X = int(input()) X int(input()) int input() input if 400 <= X < 600:
    print(8)
elif 600 <= X < 800:
    print(7)
elif 800 <= X < 1000:
    print(6)
elif 1000 <= X < 1200:
    print(5)
elif 1200 <= X < 1400:
    print(4)
elif 1400 <= X < 1600:
    print(3)
elif 1600 <= X < 1800:
    print(2)
else:
    print(1) 400 <= X < 600 400 <= X 400 X 600 print(8) print 8 elif 600 <= X < 800:
    print(7) 600 <= X < 800 600 <= X 600 X 800 print(7) print 7 elif 800 <= X < 1000:
    print(6) 800 <= X < 1000 800 <= X 800 X 1000 print(6) print 6 elif 1000 <= X < 1200:
    print(5) 1000 <= X < 1200 1000 <= X 1000 X 1200 print(5) print 5 elif 1200 <= X < 1400:
    print(4) 1200 <= X < 1400 1200 <= X 1200 X 1400 print(4) print 4 elif 1400 <= X < 1600:
    print(3) 1400 <= X < 1600 1400 <= X 1400 X 1600 print(3) print 3 elif 1600 <= X < 1800:
    print(2) 1600 <= X < 1800 1600 <= X 1600 X 1800 print(2) print 2 print(1) print 1 X = int(input()) int(input()) X
X = int(input())

if 400 <= X < 600:
    print(8)
elif 600 <= X < 800:
    print(7)
elif 800 <= X < 1000:
    print(6)
elif 1000 <= X < 1200:
    print(5)
elif 1200 <= X < 1400:
    print(4)
elif 1400 <= X < 1600:
    print(3)
elif 1600 <= X < 1800:
    print(2)
else:
    print(1)
